\documentclass[E:/GsjzTle/main/main.tex]{subfiles}

\begin{document}

\begin{lstlisting}
#include<bits/stdc++.h>
using namespace std;
int main()
{
	freopen("in","r",stdin);
	freopen("2.out","w",stdout);
	int a , b;
	cin >> a >> b;
	if(a != b) cout << "YES\n";
	else cout << "NO\n";
	return 0;
}
\end{lstlisting}

\end{document}
